Nut-lock.



J. T. KISTLER.

-NUT LOGK.

'APPLIOATION FILED SEPT. 14,1912.

1,060,005., Patented Apr. 29, 1913.

1 5 rable and substantial strains ran .r o nion.

JOHN THOMAS KISTLER, @F GAROLEEN, NORTH @AROLIHA, ASSIGIIOR F@IlE-FOUB/HE TO GEORGE W. ROLLINS AND GIVE-FOURTH TE HILMAN D. PHILLIPS,BOTH LEEN, NORTH CAROLINA.

Patented Apr. 2o, il-i'91l3.

Application filed September 14, 1912-. Serial No. 720,406.

To all whom it may concern.

Be it known that 1, JOHN Tr-ronnxs Kierman, a citizen of the UnitedStates, residing at Caroleen, in the countyof Rutherford and State ofNorth Carolina, have invented certain new and useful Improvements in Nut-Locks, of which the following is a specification, reference being hadto the accompanying drawings.

This invention relates to locks and more particularly to the class ofnut looks.

The principal object of the invention is the provision of a nut lockwhich is cheap and inexpensive to manufacture, and of dudesign.

- A further object of the invention is the provision of a nut providedin one face thereof with a recess adapted to receive'a ratchet diskwhich is slidably keyed to the eldwithin sai recess through the mediumof a locking ring, the ratchet disk being engagedby a spring actuatedpawl which when released the nut may be revolved or grooved end'of hebolt and is adapted to be screwed upon the'bolt into various lockedpositions against rotation in the opposite direction.

"With, these and other objects in view, as will up fitures ofconstruction, combination and arrangement of parts asv will be morefully described hereinafter and set forth with particularity in theappended claims.

Referring to the drawings Figure 1 is a side elevation of my improvednut lock; Fig. 2 is a section on line 2 Fig. 3 is atransverse seetiontaken on the line 33 of. Fig. 1'; Fig. t is'a longitudinal 4o sectionalview through the nut and'a portion ofa bolt; Fig. 5 is a perspectiveview of the ratchet releasingmember, and Fig. 6 is a perspective viewofthe locking ring arrangement.

Like characters oif reference are used to denote like. parts "throughoutthe accom panying drawings andgythe annexed specifi cation. p I

- Referring more particularly to the draw- Sings, the referencecharacter 1 indicates the threaded end portion 'of a belt which may beof any desired construction and is provided with a longitudinal groove 2which extends throughout the length of the threadpear as the descriptionproceeds, the 30/invent1on comprises the various novel fea- 2 of Fig.l;-

periphery with notches 19.

ed end portion of the bolt. A nut 3 of any design is threadedly mountedupon the bolt 1 for free rotation in one direction. The innor face ofthe nut 3v is provided with a circumferential recess 4 which is adaptedto receive a ratchet 5, the latter being slidably keyed to the bolt 1through the medium of a key 6 formed at and to. project inwardly of the.central opening of the disk. This key 6 seats within the groove 2 of thebolt where by the ratchet disk 4 may have free longitudinal movementupon the bolt. The pe ri heral edge of the ratchet disk 4 is prov' edwith a plurality of notches 7 to form what might be termed ratchetteeth. The nut 3 is provided at the upper portion there- 0;t',as clearlyseen at Fig. 3, with a vertically extending slot 8 through whichprojects a ratchet pawl 9, the lower end thereof being adapted, as shownat 10, to; engage the rate et teeth 7 of the disk 4. "l.-he ratchet pawl9 is provided with'a laterally extendmg arm I]; which terminates in anarm 12 formed at right angles to thearm-ll, the angle of connection ofsaid arms being provided withan aperture 13. As shown the nut is.provided at its upper and one side face thereof with a continuous groove14 in which is arranged the arms 11 and 12. A pivot-pin 15 is passedthrough the upper corner of the nut and through the aperture 13 wherebythe ratchet pawl may have free rocking movement to disengage theratchetpawl 9 from the ratchet teeth 7 when the pawl 9. is lifted out ofengagement therewith for the free rotation of the nut 3 upon the bolt.Secured to the arm 12 is a fiatleaf spring 16 seated within. the lowerportion of the recess lt and adapted to exert an outward tensio'n uponthe arm 12 to cause theratchet pawl 9 to 'lockingly engage, the ratchetteeth 7 of the disk 4. The-disk 4 is provided with an inwardly extendinghearing collar 17 upon which is arranged a looking ring 18, the latterbeing provided in its The outer edge of the recess formed in the innerface of the nut 3 is constructed inwardly at diametrically oppositepoints to form locking lugs 20. To arrange the locking ring 18 inposition, it is revolved so that the notches 19 aline with the lockinglugs 20 whereby the ring 18 may be dropped thereover into the recess ofthe nut 3 and then revolved so that the peripheral edge of the nut.

the ring engages be 20 whereby the ring disengagement with By theprovision of such a locking ring as described the ratchet disk l will besecurely held within the nut against disneath the locking lugs will beprevente from placement and yet allow of a free longitudithe forward endof which is flattened and crating member 21 is widened and formed withanopening 23 which is of the same size and shape as the nut 3 wherebythe operating member may be arranged over the nut to release the'ratchet'pawl 9 and to revolve the nut upon the bolt. This operatingmember a 21 is provided in its side edges adjacent the opening formed inthe end thereof with notches 24. That portion of the member between thenotches 24 and the opposite side edge of the member is beveled as shownat 25 from the inner edge of the notches 24: outwardly as will beclearly seen by; reference to Fig. 5.

In the operation of t e invention the oplaced over the nut 3 and ispushed inwar g sufficiently far so that one of the bevele faces 25 ridesinwardly underthe beveled face 26 formed on the under face of theprojecting portion 27 at the up or end of the ratchet pawl 9 be liftedout of whereby t e pawl 9 ma et teeth 7 to allow engagement with therate 'of a free rotation of the nut 3 in one direction in the removal ofthe nut from the bolt. When it is desired to screw the nut upon thebolt, the nut is freely rotated in the opposite direction, the lowerface 10 of the ratchet pawl 9 having been disengaged from teeth premitof this free rotation of the nut 3 upon the bolt 1.

In Fig. 6 will be seen an-operating member 28 which is provided with ahandle 29, the forward end of which is bifurcated or forked to providespaced arms 30 which have their terminal ends bent at right angles toprovide lugs 31. When it is desired to remove the locking ring 18theoperating member 28 is taken in one hand and the lugs 31' on the endthereof are engaged with diametrically op osed notches 32 formed in theinner circum erential face of the locking r'ng 18, whereby the lattermay be revolve so that the notches 19 in t e periphery thereof aredisposed. op osite the locking lugs 20 thus enabling t e ring 18 to bemoved outwardly of the recess in the nut 3. B the removing of thelocking ring) 18 it Will be apparent that free access may e had to theratchet disk 4.

From the foregoing connection with the accompany nt5 drawings, theadvantages of constructionwill the 'said ratchet disk whereby the nutmay description taken in method of operation will be readily apparent tothose skilled in the art to which the invention relates, and while Ihave described the principle of operation of the invention, togetherwith the device which I now consider to be the best embodiment thereof,I desire it to be understood that such changes may be made when desiredas are within the scope of the appended claims.

Having thus fully described my invention whatI claim as new is! 1. In anut lock,-the combination with a 'bolt provided with a longitudinalgroove, a-

ratchet disk keyed to and movable upon said bolt, said disk beingprovided with a laterally extending collar, of a nut provided in oneface thereof with a recess adapted to receive the ratchet disk, alocking ring removably mounted in said recess and arranged upon saidcollar, and means adapted for engagement withsaid ratchet diskwherebythe nut may be normally locked againstrotation in eitherdirection.

2. In a nut'lock, the combination with a bolt, of a ratchet disk keyedto'and movable upon said bolt, a nut provided in one face thereof with arecess adapted to receive the ratchet disk, a locking ringremovablyilocked in said recess to hold the ratchet dis thereand meansadapted for engagement with be normally locked against rotation ineither direction.

3. In a nut loc ratchet disk keyed to and slidably mounted upon thebolt, said disk being rovided with a laterally extending collar and withratchet teeth in the'peripheral edge thereof, of a nut provided 1n itsinner face with a recess adapted to receive the ratchet disk, a lockmgthe inner face of the nut, the edge cess bein struckinwardly to overliethe the combination with a. ,bolt provided with a longitudinal groove, a

ring arranged upon the collar of the ratchet disk and adapted to lieflush with of the re-- lockin ring, said locking ring bein provided inits periphery with posed notches, and a spring pawl project ng throughone side of the t'with the ratchet disk diametrica y 'opnut into.engagemen, for the purpose set/ forth.

4. In a nut logkf, the 'combination witha bolt, a ratchet, i upon thebolt, saiddisk being provided with a laterally extending collar, alocking ring arranged upon he collar, 1 in its inner facwithacircumferential recess to receive said ratchet disk and lockinring, the wall: of said recess'being struc inwardly at diametricallyopposite oints to form locking lugs to maintain sai ,rin

within said recess, said ring being forme with peripheral diametrically0 posed notches, said notches being ada tedor en- 'gagement with saidlugs where y the ring sk keyed to and movable actuated ratchet I disk, alocking ring lockingly engaged with the nut to hold the ratchet diskwithin the recess thereof, a ratchet pawl projecting through one side ofthe nut into engagement with the ratchet disk and provided with anangular arm arranged and pivoted within a groove intermediate its endsformed in the faces of the nut and a leaf spring secured to the terminalend of the arm and adapted to bear against the end portion of the grooveto maintain the ratchet pawl in engagement with the disk.

6. In a nut lock, the combination with a bolt provided with a lonitudinal groove, a ratchet disk keyed to ant movable upon the bolt, of anut provided in one face thereof with a recess adapted to receive theratchet disk, a locking ring detachably and lookingly engaged with thenut, and a spring actuated pawl projecting through one face of the nutto engagement with the ratchet disk, the outer terminal end of theratchet pawl being .provided with a laterally extending portion beveledon its under face for the purpose set forth.

7. In a nut lock, the combination with a bolt, a ratchet disk keyed andmovable upon said bolt, said disk being provided with a laterallyextending collar, and locking ring arranged upon the collar, of a nutformed in its inner face with a recess adapted to re= ceive said ratchetdisk and locking ring,-

means formed upon the wall of said recess adapted for interlockingengagement with said locking ring, and means adapted for engagement withsaid ratchet disk whereby the nut may be normally locked againstrotation. I

In testimony whereof I hereunto aiiix my signature in the resence of twowitnesses.

J OH THOMAS KISTLER. Witnesses:

F. 0. JAMES, C. J. OWEN.

